P0643 Suzuki Sensor Reference Voltage A Circuit High
Possible causes
– Faulty Engine Control Module (ECM)
– ECM harness is open or shorted
– ECM circuit poor electrical connection
– Shorted sensor on 5 volt circuit
– ECM harness is open or shorted
– ECM circuit poor electrical connection
– Shorted sensor on 5 volt circuit
What about the obd code?
The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher than expected
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
Suzuki Vehicle:Suzuki XL7,Suzuki Kizashi,Suzuki Escudo,Suzuki SX4,Suzuki Wagon R,Suzuki Alto,Suzuki Cervo,Suzuki Cappuccino,Suzuki Fronte,Suzuki Grand Vitara,Suzuki Ignis,